Volume 10, Issue 4 (Autumn 2021)                   J Occup Health Epidemiol 2021, 10(4): 217-223 | Back to browse issues page

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Mordouei Z, Sheikhfathollahi M, Rezaeian M, Ahmadinia H, Mirzaei M, Safarian M et al . The Validity and Reliability of the Persian Version of the Impact on Participation and Autonomy (IPA-p) Scale in Patients with Positive Angiography. J Occup Health Epidemiol 2021; 10 (4) :217-223
URL: http://johe.rums.ac.ir/article-1-427-en.html

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1- MSc in Epidemiology, School of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran.
2- Assistant Prof., Dept. of Epidemiology and Biostatistics, School of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran.
3- Professor, Dept. of Epidemiology and Biostatistics, Occupational Environmental Research Center, School of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran.
4- Assistant Prof., Dept. of Epidemiology and Biostatistics, Occupational Environmental Research Center, School of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran.
5- Assistant Prof., Dept. of Cardiology Medicine, Medical School, Rafsanjan University of Medical Sciences, Rafsanjan, Iran.
6- Professor, Dept. of Social Medicine, Social Determinants of Health Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran. , rvazirinejad@yahoo.co.uk
Article history
Received: 2021/04/28
Accepted: 2021/12/1
ePublished: 2021/12/25
Subject: Epidemiology
Abstract:   (1553 Views)

Background: Cardiovascular disease often leads to limitations in patient activities. Therefore, providing a valid and reliable tool to measure the level of participation and autonomy can be used for improving their health. This study aimed to determine the validity and reliability of the Persian version of a participation and autonomy scale (IPA-p) in patients with positive angiography.
Materials and Methods: This psychometric properties assessment study was conducted recruiting 202 positive angiography patients referred to a cardiovascular diseases clinic in Rafsanjan in 2017. Ten experts were also recruited to help assess the face and content validity. Criterion validity of the scale was assessed by calculating the correlation of the two sets of scores collected from patients and their relatives. To compute the construct validity, exploratory and confirmatory factor analysis were performed. Scale reliability was also evaluated.
Results: The content validity index was 0.94. The correlation coefficient between the scores of the completed questionnaires by patients and their relatives ranged between 0.443 and 1.0. Exploratory factor analysis extracted 9 factors, explaining about 73% of the total variance of the scale. Confirmatory factor analysis confirmed the fitting of the model. The Cronbach's alpha coefficient was 0.962, the coefficient of Split-half was 0.825, the Intera-class correlation coefficient was 0.363, and the coefficient of Test-retest was 0.807.
Conclusion: Present findings the Persian version of the IPA scale to be a valid and reliable questionnaire for assessing participation and autonomy in patients with positive angiography. More investigation is recommended.

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